LOL I looked like a grown man at 14 so this has some validity to italso brad pitt looked older until he reached 25. then he stayed like this until 40
that is what we call chad ageing.
and then we have what we call incel ageing. looking way younger then you are until 25 (which is not a good thing). drastically decline until 30 (often not visible for the affected person. he still thinks he "looks younger then his age" with 29 tehee). then total collapse in the 30s. they now look like stereotypical accountants and engineers. the curtain falls.
the reason is BONESTRUCTURE. if you have MASCULINE BONESTRUCTURE you will look older in your late teens and early tweenties. and later this BONESTRUCTURE will prevent the face from melting.
its the opposite for incels.
there a few exceptions like gandy but yeah. in the end its all genetics